Question

这些是我正在使用的节点和所需模块的版本：

Node.js：0.10.16
Websocket Library：einaros / ws ws@0.4.28
代理服务器：nodejitsu / node-http-proxy http-proxy@0.10.3

当我运行以下程序时，我的控制台输出看起来像这样，并且不会超出这一点：

$ node app.js
proxy: got upgrade, proxying web request
wss: got connection

以下是代码：

// app.js
// A simple proxying example
//
// Setup websocket server on port 19000
// Setup proxy on port 9000 to proxy to 19000
// Make a websocket request to 9000
//

var WebSocket = require('ws'),
    WebSocketServer = WebSocket.Server,
    proxy = require('http-proxy');

// goes in a loop sending messages to the server as soon as
// the servers are setup
var triggerClient = function() {
    var ws = new WebSocket('ws://localhost:9090/');
    ws.on('open', function() {
        console.log('ws: connection open');
        setInterval(function() {
            ws.send("Hello");
        }, 1000);
    });

    ws.on('message', function(data) {
        console.log('ws: got ' + data);
    });
}

// setup websocket server and a proxy
//
var go = function() {
    // setup a websocket server on port 19000
    //
    var wss = new WebSocketServer({ port: 19000 });
    wss.on('connection', function(ws) {
        console.log('wss: got connection');
        ws.on('message', function(data) {
            console.log('wss: got ' + data);
            ws.send('wss response: ' + data);
        });
    });


    // setup a proxy server
    var server = proxy.createServer(function (req, res, proxy) {
        proxy.proxyRequest(req, res, {
            host: 'localhost',
            port: 19000
        });
    });

    server.on('upgrade', function (req, socket, head) {
        console.log('proxy: got upgrade, proxying web request');
        server.proxy.proxyWebSocketRequest(req, socket, head, {
            host: 'localhost',
            port: 19000
        });
    });

    server.listen(9090, triggerClient);
};

process.nextTick(go);

当我尝试使用hipache时，我的问题最终开始了，然后我将事物简化为node-http-proxy，然后最终简化为这段代码。

如果您将WebSocket客户端连接的端口从9090更改为19000（从而绕过代理），事情似乎正常。

任何建议，指示和反馈都将不胜感激。

谢谢！

Answer 1

核心问题是node-http-proxy的主分支只与节点＆lt; = 0.8.x兼容（参见https://github.com/nodejitsu/node-http-proxy#when-to-use-node-http-proxy）：有一棵树实现了对0.10.x的支持（参见{ {3}}）但它不是主线分支，我没有找到何时合并并可用的任何指示。

通过node-http-proxy代理WebSockets不起作用

1 个答案: